An application which allows anyone with a mobile device to make observations of fireballs and report the observations to Finnish observation tracking system [Taivaanvahti](http://www.taivaanvahti.fi/). Social aspects of this app allows you to post your observations and findings to Twitter. The app also has some educational info of Near Earth Objects.
Create UI on top of captured image which shows white arrow to describe the flight trajectory of the seen fireball. Arrow should be draggable from both ends to make it possible to move it freely and even change the direction 180 degrees. Calculate the angle (in degrees) of the arrow so that 0 degrees is north and angle increases clockwise.
Create UI on top of captured image which shows white arrow to describe the flight trajectory of the seen fireball. Arrow should be draggable from both ends to make it possible to move it freely and even change the direction 180 degrees. Calculate the angle (in degrees) of the arrow so that 0 degrees is north and angle increases clockwise.